William s



W. 8.. McNElL.

v Car Heater. Nu. 91,148. Patented June 8 18.69;

f; tinned sate {gaunt Qtlliirr.

WILLIAM S. MCNEIL, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO AMERICAN OAR-HEATING COMPANY, OF NEW YORK CITY.

Letters Patent No; 91,148, dated June 8, 1869.

OAR-HEATER AND VENTILATOR.

The Schedule referred to in these Letters Patent and making part of the same.

To whom it may concern Be it known that I, WILLIAM S. MGNEIL, of Spring field, Hampden county, Massachusetts, have invented certain new and useful Improvements in Apparatus for Heating and Ventilating Railroad-Cars; and I 1 hereby declare the following to be a full, clear, and exact description of the same, reference being bad to the accompanying drawings, in which-- by the air taken in from the exterior of and above the the car is purified, or purified and heated; and,

Secondly, in an improved arrangement of the heat- ;ing-portion of the structure, so as to economize room,

. and at the. same time impart to the air the required heat. I

The nature of these improvements-can best be explained and understood by reference to the accompanying drawings. g

The pipe A, through which air is taken from above the moving car, is united at its base with, and opens into a larger cylinder, B, which contaiusitbe means for purifying the air.

The lower part of the cylinder is filled with water,

i a suitable pipe, a, being provided for admitting the water, and another pipe being provided for the overflow, and a pipe, or conduit, 0, which is also contained in the cylinder, and receives air from the pipe A, opens into the inner heating-chamber D, around the fire-box E, of the apparatus.

Around the upperend of the conduit 0 is a slanting partition, b, which dividesthe box, or cylinder B, into two parts, and leading out from the lowest point of the slanting partition is a'discharge-tnbe, c.

That portion of the air-conduit O which extends above the partition is surmounted by a conical gauze cap, or screen d, and the lower part of the conduit is perforated, or cut away, as shown at of, so that the air maybe brought in contact with the water or vapor rising therefrom. By these means, it will be seen that the purifying can be thgroug'hly effected.

' The cinders, passing with the air through the pipe A, are deflected from the conical or tapering screen d,

(which also serves, in a measure, todeflect the smoke which enters along with the cinders,) and falling upon the slanting. partition I), are carried down to the tube 0, through which they are discharged from the apparatus. The air, thus freed from all extraneous matter to a greater or less extent, passes into the conduit 0, and into the water-chamber, where it is still further purified, and thence it passes to the heating-chamber D, from which it is discharged through the registerpipe F, arranged along the side of the car, as shown in fig. 2.

Little dirt, if any, can enter the water-chamber, which is thus kept clean, while the cinders and other extraneous matter, as soon as caught by the screen, are discharged from the apparatus, as above described.

The fire-box, or stove proper, E, rests upon a base,

or ash box, G, provided with a sliding door, or equivalent means, for obtaining access to the same, and elfecting the regulation of the draught.

The fire-box, as above stated, is surrounded by the heating-chamber D, which extends up to about the height of the box, and is there closed and united with the box, by means of a cap, 9. This cap iscut away to receive the lower end of the magazine, or hopper H, through which fuel is fed to the fire, and the magazine is surrounded by a cylinder which rests upon the cap g, foriniiig a second chamber, I, which receives the flauies and products of combustion from the fire-box, through apertures h in the cap, as well as apertures '43 in the magazine.

The upper endof the magazine, or feed-hopper, is alsoperforated, at j, to permit the escape of the smoke, which passes, up into the dome J, and out through the smoke-pipe K.

The top of the magazine, to prevent accident from fire, is closed by a sliding screen-plate, Z, which can bc withdrawn whenever required. It is provided with a finger-piece, or handle, m, projecting from the stove, and with a second piece, it, which, when the screenplate covers the magazine, rests against the dome, just under the opening, which is closed by the door 11.

When the latter is shut and secured by a lock and key in the usual manner, its lower part will overlap and press tightly against the holding-piece n, and thus lock the screen-plate securely in place, so that in case of an accident, even if thevstove be overturned, the fuel cannot escape from the fire-box, so long as the door remains closed.

Surrounding the air-chamber D and heating-space I is an exterior drum, forming the annular chamber K, which overhangs the base G. This chamber, in contradistinction to the chamber D, which receives and heats the air taken in from above the moving car, is intended to furnish a supply of heated air when the car is at rest. To this end, it is provided at its bottom'with a series of apertures, to admit air, which is heated by the heat radiated from the space I, and is then discharged into the car through registers L.

I am aware that the apparatus shown in the patent hereinbefore referred to embodies the al features above described, that is so say, the uii i g-apparatns, 7 the chamber around the fire-box, for heating the sup ply of air received while the car is in m l n, the chamher for receiving, heating, and discharging air while the car is at rest, and the space above the firebox, for heating the latter supply of air.

So far as concerns the purifying-apparatus, the nature of the present improvement will, however, be readily perceived, and as regards the heating-portion of the apparatus, it will be noted, that by raising the heatingchambers above the base, and by the employmout of the dome, (which, it should be said, is provided with registers, as shown in the drawing, for re ulating the draught, access can be had with muc greater ease to the re-box, greater security against anger of fire, in case of accident, is attained, and the air-heating chambers, as well as those which contain the fuel and flame and products of combustion, can be arranged much more compactly and in a smaller space than was practicable before.

The flames and other prod l of combustion, after passingl through the upper heatingspace I, return throng the magazine or feecl tube, and thence pass through the screen-plate I, up into the dome, and out through the chimney, or smoke-pipe.

Having now described my invention, and the manner in which the same is or may he carried into eii'ect,

What I claim, and desire to secure by Letters Patout, is-

1. The employment, with the conduit for conducting air from the exterior of the car to the heating-apparatus, of a slanting, or inclined partition within such conduit, for receiving and deflecting the cinders and other impurities entering with the air, and a dischargeorifice, located at or near the lowest point of the parthe pi ing clause, of the water-cylinder, or chamber, w i which the inn i "-1 partition and the pipe passing through the same arearrauged, as hereinhefore shown and specified.

4. The air-purifying apparatns,construotedasherein specified, in combination with the heating-apparatus, substantially as shown and set forth.

5. The airangement, in an apparatus such as described, of the fire-box, the-feed-hopper, or magazine, the upper heatin -space,"the-two receiving and heatin'g-chamhers, an the dome surm muting said parts, substantially in the manner shown and specified.

6. The employment, in coon ii I with the dome and the hopper, or feed-tube u i 1g into the fire-box, as described, of a sliding screen-plate, covering the hopper, and adapted to be locked, or heldin place by the door carried bythe dome, as and for the purposes shown and set forth.

Witnesses:

Swarm E. Snmoun. W. M. GRAY.

In testimony whereof, I have signed my name tothis' 

